| What are two types of expanded metal? |
| Regular and Flatten |
| What are various styles of expanded metal? |
Mini mesh small openings (ex. filter mesh).
Expanded metal-larger openings 3/16" to 2" (ex. guards for windows and equipment, shelving).
Expanded grating 3.0# to 7.0# per sq. ft.(ex. walkways and platforms designed for pedestrian foot traffic). |
| What are the five main areas that expanded metal is used? |
Enclosures cages,tool partitions and lockers
Supports shelving, racks, trays and baskets
Protection guards for machine and heaters, skylights and lamps
Security behind drywall,fencing
Decoration store fixtures, stands, balcony railings and stair enclosures |
| Terminology: |
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Style Designation: Expanded metal products are designated by a series of numbers which identify a given style. The First Number is the nominal diamond dimension Short Way of Design (SWD). The Second Number used in conjunction with the first number MAY specify the gauge of metal, weight per hundred square foot, or may have some other significance. Therefore, the word "GAUGE" Should never be added to the style designation. Grating products are designated by weight per square foot of the finished product.
Strands: The individual slit metal strips, or slides of an expanded metal pattern. Strand Thickness in standard expanded metal is the gauge or thickness of the sheet or coil from which the expanded metal was produced. In flattened expanded metal it is the overall thickness of the finished sheet. Strand Width in standard expanded metal is the amount of metal fed into the expanding machine, which is slit and stretched with each stroke of the upper die. In flattened expanded metal, it is as the name implies, the width of the strand. |
Percent Open Area: The amount of open area to determine the amount of light or air passage.
SWD: The distance from a point on a bond to a corresponding point on the following bond measured across the Short Way of Design. This distance is also sometimes referred as "pitch SWD".
LWD: The distance from a point on a bond to a corresponding point on the following bond measured across the Long Way of Design. This distance is also sometimes referred as "pitch LWD".
SWO: Short Way of Opening, the distance measured from the inside of the bond across to the inside of the bond SWD.
LWO: Long Way of Opening,the distance measured from the inside of the bond across to the inside of the bond LWD.
Bond: The intersection of two strands and it is always the width of two strands.
Overall Thickness: The actual measurement of the thickness of the mesh measured at the bond.
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